CHAPTER 14: CLEANING
Chapter 14: CleaningCHAPTER 14: CLEANINGStep-by-Step Summary . 14–3I. Introduction . 14–5A. Performance Standard . 14–5B. Small Dust Particles . 14–5C. Difficulties in Cleaning . 14–51. Low Clearance Standards . 14–52. Worker Inexperience . 14–63. High Dust-Producing Methods and/or Inadequate Containment . 14–64. Deadlines . 14–6II. Coordination of Cleaning Activities . 14–6A. Checklist . 14–6B. Equipment Needed for Cleaning . 14–6C. Waste Disposal. 14–7III. Cleaning Methods and Procedures . 14–7A. Containment . 14–7B. Basic Cleaning Methods: Wet Wash and VacuumCleaning Techniques . 14–71. HEPA Vacuuming . 14–72. Wet-Detergent Wash . 14–93. The HEPA/Wet Wash/HEPA Cycle . 14–114. Sealing Floors . 14–16IV. Order of Cleaning Procedures During Lead Hazard Control . 14–16A. Precleaning Procedures . 14–16B. Ongoing Cleaning During the Job . 14–18C. Daily Cleaning Procedures . 14–181. Large Debris . 14–182. Small Debris . 14–183. Exterior Cleaning . 14–184. Worker Protection Measures . 14–195. Maintaining Containment . 14–1914–1
Chapter 14: CleaningV. Order of Final Cleaning Procedures AfterLead Hazard Control . 14–19A. Final Cleaning . 14–191. Decontamination of Workers, Supplies, and Equipment . 14–19B. Preliminary Visual Examination . 14–20C. Surface Painting or Sealing of Nonfloor Surfaces . 14–20D. Final Inspection . 14–20E. Recleaning After Clearance Failure . 14–20VI. Cleaning Cost Considerations . 14–21A. Initial Clearance Test Failure Rates. 14–21B. Key Factors In Effective Cleaning . 14–21C. Special Problems . 14–21VII. Alternative Methods . 14–22A. Vacuums . 14–22B. Trisodium Phosphate and Other Detergents . 14–2214–2
Chapter 14: CleaningStep-by-StepSummaryCleaning: How To Do It1.Include step-by-step procedures for precleaning, cleaning during the job, and daily and final cleanings inproject design or specifications.2.Assign responsibilities to specific workers for cleaning and for maintaining cleaning equipment.3.Have sufficient cleaning equipment and supplies before beginning work.4.If contamination is extensive, conduct precleaning of the dwelling unit. Move or cover all furnitureand other objects.5.Conduct ongoing cleaning during the job, including regular removal of large and small debris and dust.Decontamination of all tools, equipment, and worker protection gear is required before it leaves containment areas. Electrical equipment should be wiped and high-efficiency particulate air (HEPA) vacuumed,not wetted down, to minimize electrocution hazards.6.Schedule sufficient time (usually 30 minutes to an hour) for a complete daily cleaning, starting at the sametime near the end of each workday after lead hazard control activity has ceased.7.For final cleaning, wait at least 1 hour after active lead hazard control activity has ceased to let dustparticles settle.8.Use a vacuum cleaner equipped with a HEPA exhaust filter. HEPA vacuum all surfaces in the room(ceilings, walls, trim, and floors). Start with the ceiling and work down, moving toward the entry door.Completely clean each room before moving on.9.Wash all surfaces with a lead-specific detergent, high-phosphate detergent, or other suitable cleaningagent to dislodge any ground-in contamination, then rinse. Change the cleaning solution after everyroom is cleaned.10. Repeat step 8. To meet clearance standards consistently, a HEPA vacuum, wet wash, and HEPA vacuumcycle is recommended. For interim control projects involving dust removal only, the final HEPA vacuuming step is usually not needed (see Chapter 11). Other cleaning methods are acceptable, as long as clearance criteria are met and workers are not overexposed.11. After final cleaning, perform a visual examination to ensure that all surfaces requiring lead hazard controlhave been addressed and all visible dust and debris have been removed. Record findings and correct anyincomplete work. This visual examination should be performed by the owner or an owner’s representativewho is independent of the lead hazard control contractor.12. If other construction work will disturb the lead-based paint surfaces, it should be completed at this point.If those surfaces are disturbed, repeat the final cleaning step after the other construction work has beencompleted.13. Paint or otherwise seal treated surfaces and interior floors.14. Conduct a clearance examination (see Chapter 15).15. If clearance is not achieved, repeat the final cleaning.14–3
Chapter14: CleaningStep-by-StepSummary(continued)16. Continue clearance testing and repeated cleaning until the dwelling achieves compliance with all clearance standards. As an incentive to conduct ongoing cleaning and a thorough final cleaning, the cost of repeatedcleaning after failing to achieve clearance should be borne by the contractor as a matter of the job specification, not the owner.17. Do not allow residents to enter the work area until cleaning is completed and clearance is established.18. Cleaning equipment list: HEPA vacuums. Detergent. Waterproof gloves. Rags. Sponges. Mops. Buckets. HEPA vacuum attachments (crevice tools, beater bar for cleaning rugs). 6-mil plastic bags. Debris containers. Waste water containers. Shovels. Rakes. Water-misting sprayers. 6-mil polyethylene sheeting (or equivalent).14–4
Chapter 14: CleaningChapter 14: CleaningI. IntroductionThis chapter describes cleaning procedures tobe employed following abatement and interimcontrol work. Dust removal as an interim control measure is covered in Chapter 11.All lead hazard control activities can producedangerous quantities of leaded dust. Unless thisdust is properly removed, a dwelling unit willbe more hazardous after the work is completedthan it was originally. Once deposited, leadeddust is difficult to clean effectively. Wheneverpossible, ongoing and daily cleaning of leadeddust during lead hazard control projects is recommended. Ongoing and daily cleaning is alsonecessary to minimize worker exposures.Cleaning is the process of removing visible debris and dust particles too small to be seen bythe naked eye. Removal of lead-based painthazards in a dwelling unit will not make theunit safe unless excessive levels of leaded dustare also removed. This is true regardless ofwhether the dust was present before or generated by the lead hazard control process itself.Improper cleaning can increase the cost of aproject considerably because additional cleaning and clearance sampling will be necessary.However, cleaning and clearance can beachieved routinely if care and diligenceare exercised.A. Performance StandardAlthough the cleaning methods described inthis chapter are feasible and have been shownto be effective in meeting clearance standards,other methods may also be used if they aresafe and effective. This performance-orientedapproach should stimulate innovation, reducecost, and ensure safe conditions for both residents and workers.B. Small Dust ParticlesDust particles that are invisible to the nakedeye remain on surfaces after ordinary cleaningprocedures. A visibly clean surface may containhigh and unacceptable levels of dust particlesand require special cleaning procedures.C. Difficulties in CleaningWhile cleaning is an integral and essential component of any lead hazard control activity, it isalso the most likely part of the activity to fail.Several common reasons for this failure includelow clearance standards, worker inexperience,high dust-producing methods, and deadlines.1. Low Clearance StandardsBecause very small particles of leaded dust areeasily absorbed by the body when ingested orinhaled, a small amount can create a health hazard for young children. Therefore, “clearancestandards” are extremely low for acceptable levels of leaded dust particles on surfaces after hazard control activities, and careful cleaning procedures are required. Although it is not possibleto remove all leaded dust from a dwelling, it ispossible to reduce it to a safe level.Clearance standards are described more fully inChapter 15. The permissible amount of leadeddust remaining on each of the following surfacesfollowing lead hazard work is as follows: 100 µg/ft2 on floors. 500 µg/ft2 on interior window sills (stools). 800 µg/ft2 on window troughs (the areawhere the sash sits when closed). 800 µg/ft2 on exterior concrete.These levels are based on wipe sampling.Clearance testing determines whether the premises or area are clean enough to be reoccupied after the completion of a lead paint hazard control project. A cleaned area may notbe reoccupied until compliance with clearancestandards has been established. To prevent delays, final testing and final cleaning activitiesshould be coordinated.14–5
Chapter 14: Cleaning2. Worker InexperienceTo understand the level of cleanliness requiredto meet the established clearance standards forhazard control cleanup, new hazard control personnel often require a significant reorientationto cleaning. Many construction workers areused to cleaning up only dust that they cansee, not the invisible dust particles that are alsoimportant to remove.3. High Dust-Producing Methodsand/or Inadequate ContainmentHigh dust-generating methods, inadequate containment during hazard control work, and poorwork practices can all make achievement ofclearance particularly difficult. Work practicesnecessary to prevent spreading of dust throughout a dwelling (e.g., by tracking dust out ofwork areas) are essential but sometimes tedious.Essential work practices are sometimes mistakenly considered to be “flexible guidelines”rather than necessary standards that are designed to ensure that the job is completed, notonly safely, but also on time and within budget.4. DeadlinesDaily and final cleanings have sometimesbeen compromised due to project deadlines,since cleaning comes at the end of the job.Hurried efforts often result in clearance failure. Delayed and over-budget hazard controlprojects are often the result of repeated, unplanned recleanings that are necessitated byinadequate containment and sloppy workpractices.II. Coordination ofCleaning ActivitiesA. ChecklistThe owner or contractor may use the followingcleaning checklist before any lead hazard control activity: Is the critical importance of cleaning ina hazard control project understood? Have all workers been trained and certifiedfor hazard control work?14–6 Have the precleaning, daily, and finalcleanings been scheduled properly andcoordinated with the other participantsin the hazard control process? Have cleaning equipment and materialsbeen obtained? Do the workers know how to operate andmaintain special cleaning equipment, anddo they have directions for the proper useof all cleaning materials? Have all workers carefully studied thestep-by-step procedures for precleaning(if needed), in-progress cleaning, anddaily and final cleanings? Are all workers properly protected duringthe cleaning processes (see Chapter 9)? Have provisions been made to properlycontain and store potentially hazardousdebris (see Chapter 10)? Have dust-clearance testing and relatedvisual inspections been arranged (seeChapter 15)? Are the clearance criteria to be met fullyunderstood? Have all appropriate surfaces been properlypainted or otherwise sealed? Have appropriate records been maintainedthat document participants’ roles in thehazard control project?B. Equipment Needed forCleaningThe following equipment is needed to conduct cleaning: high-efficiency particulate air(HEPA) vacuums and attachments (crevicetools, beater bar for cleaning rugs), detergent,waterproof gloves, rags, sponges, mops, buckets,6-mil plastic bags, debris containers, waste water containers, shovels, rakes, water-mistingsprayers, and 6-mil polyethylene plastic sheeting (or equivalent).
Chapter 14: CleaningC. Waste DisposalRegulations governing hazardous and nonhazardous waste storage, transportation, and disposal affect both the daily and final cleaningprocedures. The hazard control contractor andthe disposal contractor should work together toestablish formal written procedures, specifyingselected containers, storage areas, and debrispickups, to ensure that all relevant regulationsare met.III. Cleaning Methods andProceduresMany of the special cleaning methods andprocedures detailed in this chapter are notstandard operating procedure for general homeimprovement contractors. Therefore, projectdesigners, responsible agencies, or owners mustensure that contractors follow the methods andprocedures recommended herein or speciallydesigned alternative procedures, even thoughsome may appear to be redundant and unnecessary. These methods have been shown to befeasible and effective in many situations andskipping steps in the cleaning procedures canbe counterproductive.A. ContainmentBecause of the difficulty involved in the removal of fine dust, dust generated by hazardcontrol work should be contained to theextent possible to the inside of work areas.Inadequately constructed or maintained containment or poor work practices will result inadditional cleaning efforts, due to dust thathas leaked out or been tracked out of the workarea (see Chapter 8).B. Basic Cleaning Methods:Wet Wash and VacuumCleaning TechniquesBecause leaded dust adheres tenaciously, especially to such rough or porous materials asweathered or worn wood surfaces and masonrysurfaces (particularly concrete), workers shouldbe trained in cleaning methods. As a motivator,some contractors have awarded bonuses toworkers who pass clearance the first time.Two basic cleaning methods have proven effective, when used concurrently, in lead-basedpaint hazard control projects: a special vacuumcleaner equipped with a HEPA exhaust filter,followed by wet washing with special cleaningagents and rinsing, followed by a final pass withthe HEPA vacuum.Although HEPA filtered vacuums and trisodium phosphate (TSP) cleaners have beenconsidered the standard cleaning tools for leadhazard control projects, new research, discussedunder the “Alternatives Methods” section inthis chapter, suggests that other tools and products may also be effective in efficiently cleaningdust while providing adequate worker protection from airborne exposure risks. Some of theseinnovations may even be superior.1. HEPA VacuumingHEPA vacuums differ from conventional vacuums in that they contain high-efficiency filtersthat are capable of trapping extremely small,micron-sized particles. These filters can removeparticles of 0.3 microns or greater from air at99.97 percent efficiency or greater. (A micronis 1 millionth of a meter, or about 0.00004inches.) Some vacuums are equipped with anultra-low penetration air (ULPA) filter that iscapable of filtering out particles of 0.13 micronsor greater at 99.9995 percent efficiency. However, these ULPA filters are slightly more expensive, and may be less available than HEPAfilters.Vacuuming with conventional vacuum machines is unlikely to be effective, because muchof the fine dust will be exhausted back intothe environment where it can settle on surfaces.A recent Canadian study revealed that finedust air levels were exceedingly high when astandard portable vacuum with a new bag wasused, although partially filled bags were foundto be more efficient (CMHC, 1992). Considerations for the proper use of a HEPA vacuumare listed below.14–7
Chapter 14: CleaningOperating InstructionsThere are a numerous manufacturers of HEPAvacuums. Although all HEPA vacuums operateon the same general principle, they may varyconsiderably with respect to specific procedures,such as how to change the filters. To ensure theproper use of equipment, the manufacturer’soperating instructions should be carefully followed and if possible, training sessions arrangedwith the manufacturer’s representative.Although HEPA vacuums have the same “suction” capacity as ordinary vacuums that arecomparably sized, their filters are more efficient.Improper cleaning or changing of HEPA filtersmay reduce the vacuum’s suction capability.Special AttachmentsBecause the HEPA vacuum will be used tovacuum surfaces other than floors, operatorsshould buy attachments and appropriate toolkits for use on different surfaces—such asbrushes of various sizes, crevice tools, andangular tools.Selecting Appropriate Size(s)HEPA vacuums are available in numerous sizes,ranging from a small lunchbucket-sized unitto track-mounted systems. Two criteria for sizeselection are the size of the job and the typeof electrical power available. Manufacturerrecommendations should be followed.Wet-Dry HEPA VacuumsSome hazard control contractors have foundthe wet-dry HEPA vacuums to be particularlyeffective in meeting clearance standards. Thesevacuums are equipped with a special shut-offfloat switch to protect the electrical motorfrom water contact.PrefiltersHEPA filters are usually used in conjunctionwith a prefilter or series of prefilters that trapthe bulk of the dust in the exhaust airstream,particularly the larger particles. The HEPA filter traps most of the remaining small particlesthat have passed through the prefilter(s). Allfilters must be maintained and replaced or14–8cleaned as specified in the manufacturer’sinstructions. Failure to do so may cause a reduction in suction power (thus reducing thevacuum’s efficiency and effectiveness). Failureto change prefilters may damage the vacuummotor and will also shorten the service life ofthe HEPA filter, which is far more expensivethan the prefilters.HEPA Vacuuming ProceduresSurfaces frequently vacuumed include ceilings,walls, floors, windows, interior and exterior sills,doors, heating, ventilation, and air conditioning(HVAC) equipment (heating diffusers, radiators, pipes, vents), fixtures of any kind (light,bathroom, kitchen), built-in cabinets, andappliances.To aid in dislodging and collecting deep dustand lead from carpets, the HEPA vacuum mustbe equipped with a beater bar (agitator head)that is fixed to the cleaning head. This barshould be used on all passes on the carpet faceduring dry vacuuming (see Chapter 11 fordetails on carpet and furniture cleaning).All rooms and surfaces should be included inthe HEPA vacuum process, except for thosethat (1) were found not to have lead-painthazards and were properly separated from workareas before the process began (see Chapter 8),or (2) were never entered during the process.Porches, sidewalks, driveways, and other exterior surfaces should be vacuumed if exterior hazard control work was conducted, or if debris wasstored or dropped outside. Vacuuming shouldbegin on the ceilings and end on the floors, sequenced to avoid passing through rooms alreadycleaned, with the dwellings’ entryway cleanedlast.Emptying the HEPA VacuumUsed filters and vacuumed debris are potentiallyhazardous waste and should be treated accordingly (see Chapter 10). Therefore, operatorsshould use extreme caution when opening theHEPA vacuum for filter replacement or debrisremoval to avoid accidental release of accumulated dust into the environment. This may occur, for example, if the vacuum’s seal has beenbroken and the vacuum’s bag is disturbed.
Chapter 14: CleaningFigure 14.1a Vacuum With a HEPA Filter.1. HEPA filter2. Main filter3. PrefilterPressuregaugeHoseVacuum bagParts of a HEPA-vacuumMost HEPA-vacuums have threefilters: HEPA filter, main filter, and prefilter. Debris gets sucked in throughthe hose into the vacuum bag. The airand dust get filtered through the prefilter, the main filter, and the HEPAfilter. The HEPA filter captures the leaddust before the air is released into thework area again.Operators should also wear a full set of protective clothing and equipment, including appropriate respirators, when performing this maintenance function, which should be done in thecontainment area or offsite.2. Wet Detergent WashSeveral types of detergents have been usedto remove leaded dust. Those with a highphosphate content (containing at least 5percent trisodium phosphate, also known asTSP) have been found to be effective whenused as part of the final cleaning process(Milar, 1982). TSP detergents are thought towork by coating the surface of dusts with phosphate or polyphosphate groups which reduceselectrostatic interactions with other surfacesand thereby permits easier removal. Becauseof environmental concerns some States haverestricted the use of TSP, and some manufacturers have eliminated phosphates from theirhousehold detergents. However, high-TSPdetergents can usually be found in hardwarestores and may be permitted for limited use,such as lead hazard control.Other non-TSP cleaning agents developedspecifically for removing leaded dust havealso been found to be effective (possibly moreeffective than TSP) in limited trials by severalPressuregaugeFigure 14.1b Pressure Gauge Indicator ShowsWhen Filters Require Changing.14–9
Chapter 14: CleaningFigure 14.2 HEPA Vacuum Sizes and Tools.investigators (Grawe, 1993; Wilson, 1993) andmay also be safer, since TSP is a skin and eyeirritant. See section VII for more informationon non-TSP detergents. Proper procedures forusing high-phosphate detergents also apply tomost other types of detergents and include thefollowing steps:Manufacturer’s Dilution InstructionsUsers of cleaning agents for leaded dust removal should follow manufacturer’s instructions for the proper use of a product, especiallythe recommended dilution ratio. Even diluted,trisodium phosphate is a skin irritant and usersshould wear waterproof gloves. Eye protectionshould also be worn, and portable eyewashfacilities should be located in or very near thework area. Consult manufacturer’s directionsfor the use of other detergents.Appropriate Cleaning EquipmentBecause a detergent may be used to clean leadeddust from a variety of surfaces, several types ofapplication equipment are needed, includingcleaning solution spray bottles, wringer buckets,mops, variously sized hand sponges, brushes,14–10and rags. Using the proper equipment on eachsurface is essential to the quality of the wetwash process.Proper Wet-Cleaning ProceduresAt the conclusion of the active lead hazard control process and the initial HEPA vacuuming,all vacuumed surfaces should be thoroughly andcompletely washed with a high-phosphate solution or other lead-specific cleaning agent (orequivalent) and rinsed. Select a detergent thatdoes not damage existing surface finishes (TSPmay damage some finishes). Work should proceed from ceilings to floors and sequenced toavoid passing through rooms already cleaned.Changing Cleaning MixtureMany manufacturers of cleaners will indicatethe surface area that their cleaning mixture willcover. To avoid recontaminating an area bycleaning it with dirty water, users should followmanufacturer-specified surface-area limits.However, regardless of manufacturers’ recommendations, the cleaning mixture should bechanged after its use for each room. As a ruleof thumb, 5 gallons should be used to clean no
Chapter 14: CleaningFigure 14.3 Goggles, Face Shields, Gloves, and Eye Wash Facilities Should Be AvailableWhen Used With Chemicals Such as TSP.Latexmore than 1,000 square feet. Used cleaningmixture is potentially hazardous waste (seeChapter 10); consult with your local waterand sewage utility for directions on its properdisposal. Wash water should never be pouredonto the ground. The wash water is usuallyfiltered and then poured down a toilet (if thelocal water authority approves).NeopreneNitrile3. The HEPA/Wet Wash/HEPA CycleTypical ProceduresThe usual cleaning cycle that follows leadhazard control activities is called the HEPAvacuum/wet wash/HEPA cycle and is appliedto an entire affected area as follows: First, the area is HEPA vacuumed.14–11
Chapter 14: CleaningFigure 14.4a The HEPA Vacuum, Wet Wash, HEPA VacuumCycle Helps in Meeting Clearance Standards.HEPA vacuum all surfacesStart at the end farthest from themain entrance/exit. As you vacuum,move towards the main exit andfinish there.Begin at the top of each room andwork down. For example, start withthe top shelves, the top of the woodwork, and so on, and work down tothe floor. Do every inch of the windows, especially the window troughs.Courtesy: Alice Hamilton Occupational Health Center14–12
Chapter 14: Cleaning Next, the area is washed down.Single-Pass Wet Wash/HEPA Vacuum After drying, the area is again HEPAvacuumed.Some lead hazard control contractors havefound HEPA spray cleaner vacuums to be acost-effective alternative to the three-pass system. Similar to home carpet-cleaning machines,these vacuums simultaneously deliver a solutionto the surface and recover the dirty solution.Theoretically, this process combines two of thesteps in the HEPA vacuum/wet wash/HEPAcycle into one step. While anecdotal evidenceindicates that the spray cleaner wet wash/HEPAis effective for some uses, limitations have beennoted in its use for ceilings, vertical surfaces,and hard to reach areas. This device may beused as long as clearance standards are met.The rationale for this three-pass system is asfollows: The first HEPA vacuum removes as muchdust and remaining debris as possible. The wet wash further dislodges dust fromsurfaces. The final HEPA cycle removes any remaining particles dislodged but not removed bythe wet wash.Figure 14.4b (continued)Use special attachmentsUse the rubber cone where the floormeets the baseboard and along allthe cracks in the floor boards. Usethe brush tool for walls and woodwork.Use the wheeled floor nozzle for barefloors and the carpet beater for rugs.Rubber ConeDust BrushMove slowlyVacuum slowly so the HEPA vacuumcan pick up all the lead dust.Powered Carpet BeaterWheeled Floor Nozzle14–13
Chapter 14: CleaningFigure 14.4c (continued)Wash all surfaces with suitabledetergentsWash all surfaces in the work areawith suitable detergents, includingareas that had been covered withplastic. Some wallpaper should onlybe HEPA vacuumed, since it maybe damaged by the detergent.123Wipe All SurfacesWet Mop Floor14–14Don’t Dry Sweep
Chapter 14: CleaningFigure 14.4c (continued)Use the 3-Bucket System.To wash: Use string mops and mopbuckets with wringers. (Some expertssay NEVER use a sponge mop on thefloor. Sponge mops may only push thelead around on the floor, not remove it.)Dip the string mophead in the detergentwash in bucket #1. Mop the floor.312Squeeze out the mophead in emptybucket #2. Return to bucket #1 for moredetergent solution and continue mopping.Repeat.Use the third bucket for rinsing the floor.31214–15
Chapter 14: CleaningFigure 14.4d (continued)HEPA vacuum all surfaces a final timeHEPA vacuum all surfaces in the workarea, including areas that had been covered with plastic.Starting at the far end, work towards thedecontamination area. Begin with ceilingso
Cleaning: How To Do It 1. Include step-by-step procedures for precleaning, cleaning during the job, and daily and final cleanings in project design or specifications. 2. Assign responsibilities to specific workers for cleaning and for maintaining cleaning equipment. 3. Have sufficient cleaning equipment and supplies before beginning work. 4.
Part One: Heir of Ash Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 Chapter 24 Chapter 25 Chapter 26 Chapter 27 Chapter 28 Chapter 29 Chapter 30 .
TO KILL A MOCKINGBIRD. Contents Dedication Epigraph Part One Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Part Two Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18. Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 Chapter 24 Chapter 25 Chapter 26
DEDICATION PART ONE Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 PART TWO Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 Chapter 21 Chapter 22 Chapter 23 .
The following topics in the Introduction to Green Cleaning and Green Cleaning Programs training manual were covered: § New York State Green Cleaning Product Mandates and products currently covered under the mandates; § Reasons for creating the green cleaning mandates; § A description of green cleaning;
About the husband’s secret. Dedication Epigraph Pandora Monday Chapter One Chapter Two Chapter Three Chapter Four Chapter Five Tuesday Chapter Six Chapter Seven. Chapter Eight Chapter Nine Chapter Ten Chapter Eleven Chapter Twelve Chapter Thirteen Chapter Fourteen Chapter Fifteen Chapter Sixteen Chapter Seventeen Chapter Eighteen
18.4 35 18.5 35 I Solutions to Applying the Concepts Questions II Answers to End-of-chapter Conceptual Questions Chapter 1 37 Chapter 2 38 Chapter 3 39 Chapter 4 40 Chapter 5 43 Chapter 6 45 Chapter 7 46 Chapter 8 47 Chapter 9 50 Chapter 10 52 Chapter 11 55 Chapter 12 56 Chapter 13 57 Chapter 14 61 Chapter 15 62 Chapter 16 63 Chapter 17 65 .
HUNTER. Special thanks to Kate Cary. Contents Cover Title Page Prologue Chapter 1 Chapter 2 Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter
Chapter 3 Chapter 4 Chapter 5 Chapter 6 Chapter 7 Chapter 8 Chapter 9 Chapter 10 Chapter 11 Chapter 12 Chapter 13 Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 Chapter 19 Chapter 20 . Within was a room as familiar to her as her home back in Oparium. A large desk was situated i
